Tag: M.W:100-200

Joergensen, Christian K.; Berthou, Herve; Balsenc, Lucette published an article about the compound: Nickel(ii)fluoridetetrahydrate( cas:13940-83-5,SMILESS:[H]O[H].[H]O[H].[H]O[H].[H]O[H].[Ni+2].[F-].[F-] ).Application In Synthesis of Nickel(ii)fluoridetetrahydrate. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:13940-83-5) through the article.

The ionization energy I of the fluoride 1s shell varies from 695.7 to 687.8 eV in 40 solid compounds and was compared with the value for four gaseous fluorides from the literature. The influence of the Madelung potential on K compounds and the combined influence of changing the oxidation state and the Madelung potential on I compounds have been studied from a comparative viewpoint. Central atoms with high oxidation numbers and small radii produce the highest I values in fluorides. The far-uv spectra and polarization effects in solid halides are also discussed.

From this literature《Photoelectron spectra of fluorides and the influence of the Madelung potential on inner shells》,we know some information about this compound(13940-83-5)Application In Synthesis of Nickel(ii)fluoridetetrahydrate, but this is not all information, there are many literatures related to this compound(13940-83-5).

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Nickel(ii)fluoridetetrahydrate(SMILESS: [H]O[H].[H]O[H].[H]O[H].[H]O[H].[Ni+2].[F-].[F-],cas:13940-83-5) is researched.Application In Synthesis of Nickel(ii)fluoridetetrahydrate. The article 《Crystal structure of μ3-fluoro-tri-μ2-fluoro-tris(tetramethylethylene-diamine nickel(II)) fluoride trihydrate, [Ni3(tmen)3F5]+·F-·3H2O, C18H54F6N6Ni3O3》 in relation to this compound, is published in Zeitschrift fuer Kristallographie – New Crystal Structures. Let’s take a look at the latest research on this compound (cas:13940-83-5).

The crystal structure of the title compound is herein given. The title compound was synthesized by a reaction of nickel difluoride tetrahydrate and N,N,N’,N’-tetramethylethylenediamine. The title compound is a fluoride bridged trinuclear complex. Crystallog. data are given.

From this literature《Crystal structure of μ3-fluoro-tri-μ2-fluoro-tris(tetramethylethylene-diamine nickel(II)) fluoride trihydrate, [Ni3(tmen)3F5]+·F-·3H2O, C18H54F6N6Ni3O3》,we know some information about this compound(13940-83-5)Recommanded Product: Nickel(ii)fluoridetetrahydrate, but this is not all information, there are many literatures related to this compound(13940-83-5).

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Safety of 8-Hydroxyquinoline 1-oxide. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 8-Hydroxyquinoline 1-oxide, is researched, Molecular C9H7NO2, CAS is 1127-45-3, about Light-induced changes in the fluorescence yield of chlorophyll α in Anacystis nidulans II. Fast changes and the effect of photosynthetic inhibitors on both the fast and slow fluorescence induction. Author is Mohanty, Prasanna; Govindjee.

The intensity dependence and spectral variations during the fast transient of chlorophyll a fluorescence were analyzed in a blue-green alga, A. nidulans. A prolonged dark adaptation and relatively high intensity of exciting illumination were required to evoke DPS (dip-peak-quasi steady state) type fluorescence yield fluctuations in Anacystis. At low to moderate intensities of exciting light, the time for the development of P depended on light intensities, but for M (maximum level), this remained constant at these intensities. Fluorescence emission was heterogeneous during the induction period. The P and M levels were relatively enriched in short-wave length system II chlorophyll a emission compared to D and S levels. The fast DPS transient was affected by an electron transport cofactor (methyl viologen) and inhibitors (e.g., DCMU [3-(3,4-dichlorophenyl)-1,1-dimethylurea], NH2OH) in a manner suggesting that these changes are mostly related to the oxidation-reduction level of intermediates between the 2 photosystems. The slow SM changes in fluorescence yield paralleled O evolution and were resistant to various electron transport inhibitors (o-phenanthroline, 8-hydroxyquinoline 1-oxide, salicylaldoxime, DCMU, NH2OH, and antimycin a). It appears that in Anacystis a net electron transport-supported oxidation-reduction state of the quencher regulates only partially the development of the DPS transient of the fluorescence yield but the development of the slow fluorescence yield changes may not be regulated by these reactions. The slow rise in the yield may be induced by a structural modification of the thylakoid membrane.

From this literature《Light-induced changes in the fluorescence yield of chlorophyll α in Anacystis nidulans II. Fast changes and the effect of photosynthetic inhibitors on both the fast and slow fluorescence induction》,we know some information about this compound(1127-45-3)Safety of 8-Hydroxyquinoline 1-oxide, but this is not all information, there are many literatures related to this compound(1127-45-3).

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Application In Synthesis of 8-Hydroxyquinoline 1-oxide. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 8-Hydroxyquinoline 1-oxide, is researched, Molecular C9H7NO2, CAS is 1127-45-3, about Oxidation of 1-naphthol and related phenols with hydrogen peroxide and potassium superoxide catalyzed by 5,10,15,20-tetraarylporphyrinatoiron(III) chlorides in different reaction conditions. Author is Chauhan, S. M. S.; Kalra, Bhanu; Mohapatra, P. P..

Reaction of 1-naphthol and related phenols with hydrogen peroxide catalyzed by 5,10,15,20-tetra(pentafluorophenyl)porphyrinatoiron(III) chloride gives quinones and oxidative coupling products, whereas the reaction of naphthols with hydrogen peroxide catalyzed by 5,10,15,20-tetramesitylporphyrinatoiron(III) chloride gives the above products along with quinone epoxides in moderate yields. The reaction of quinone with potassium superoxide catalyzed by Me12TPPFe(III)Cl and p-MeOTPPFe(III)Cl give higher yields of quinone epoxides than the reaction of quinone with hydrogen peroxide catalyzed by 5,10,15,20-tetraarylporphyrinatoiron(III) chlorides.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Tracer studies on the extraction of metal ions. III. Extraction of manganese(II), iron(III), cobalt(II), copper(II), and zinc(II) with 8-hydroxyquinoline N-oxide》. Authors are Mikulski, J..The article about the compound:8-Hydroxyquinoline 1-oxidecas:1127-45-3,SMILESS:OC1=CC=CC2=CC=C[N+]([O-])=C12).Safety of 8-Hydroxyquinoline 1-oxide. Through the article, more information about this compound (cas:1127-45-3) is conveyed.

8-Hydroxyquinoline N-oxide extract less Mn(II), Fe(III), and Co(II) than does 8-hydroxyquinoline, and the extraction takes place in a lower pH range. Zn was not extracted at all. The tracers were 54Mn, 59Fe, 60Co, 64Cu, and 65Zn. Cf. CA 60, 11569a.

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Electric Literature of F2H8NiO4. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Nickel(ii)fluoridetetrahydrate, is researched, Molecular F2H8NiO4, CAS is 13940-83-5, about Nuclear magnetic resonance study of some paramagnetic hydrated fluorides. Author is Easwaran, K. R. K.; Srinivasan, Ramaswami.

N.M.R. studies of proton and F nuclei are reported in a series of compounds MF2.4H2O, where M is Fe, Co, Ni, and Zn. The spectra of the 3 paramagnetic salts were different from those of the diamagnetic ZnF2.4H2O. Proton resonance studies of the paramagnetic members have shown marked changes in line width on cooling from room temperature to 90°K. The 19F resonance in the paramagnetic salts in polycrystalline from have shown large shifts which were temperature dependent. The results are discussed in terms of the hyperfine fields owing to the unpaired electrons of the paramagnetic ions.

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Pu, Ling-xiang; Xiao, Rong; Zhang, Yi-wen; Song, Hang published the article 《Process improvement on the synthesis of 5-(2-bromobutylacyl)-8-hydroxy quinolone》. Keywords: bromobutylacyl hydroxy quinolone synthesis.They researched the compound: 8-Hydroxyquinoline 1-oxide( cas:1127-45-3 ).HPLC of Formula: 1127-45-3. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1127-45-3) here.

5-(2-Bromobutylacyl)-8-hydroxy quinolone in total yield of 49% was synthesized by a four-step reaction of oxidation, acetylation, hydrolysis and Friedel-Crafts acylation from 8-hydroxy quinolone. The structure was confirmed by 1H NMR, 13C NMR and IR.

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Computed Properties of C12H11NO. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: (4-(Pyridin-4-yl)phenyl)methanol, is researched, Molecular C12H11NO, CAS is 217192-22-8, about In situ-prepared homogeneous supramolecular organic framework drug delivery systems (sof-DDSs): Overcoming cancer multidrug resistance and controlled release.

Water-soluble three-dimensional porous supramol. organic frameworks (SOFs) have been demonstrated as a new generation of homogeneous polycationic platforms for anti-cancer drug delivery. The new SOF drug delivery systems (sof-DDSs) can adsorb dianionic pemetrexed (PMX), a clin. used chemotherapeutic agent instantaneously upon dissolving in water, which is driven by both electrostatic attraction and hydrophobicity. The in situ-prepared PMX@SOFs are highly stable and can avoid important release of the drug during plasm circulation and overcome the multidrug resistance of human breast MCF-7/Adr cancer cells to enter the cancer cells. Acidic microenvironment of cancer cells promotes the release of the drug in cancer cells. Both in vitro and in vivo studies have revealed that sof-DDSs considerably improve the treatment efficacy of PMX, leading to 6-12-fold reduction of the IC50 values, as compared with that of PMX alone. The new drug delivery strategy omits the loading process required by most of reported nanoparticle-based delivery systems and thus holds promise for future development of low-cost drug delivery systems.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Heterocyclic N-oxides. V. Substitution reactions on 8-hydroxyquinoline 1-oxide, published in 1968, which mentions a compound: 1127-45-3, Name is 8-Hydroxyquinoline 1-oxide, Molecular C9H7NO2, Recommanded Product: 1127-45-3.

Nitration and halogenation of 8-hydroxyquinoline 1-oxide (I) having N-oxide and phenolic OH groups, each capable of orienting electrophilic substitution in the different rings, was studied with a view to knowing the relative directive influence of these groups and to screen the compounds obtained for bacteriostatic and fungistatic activity. Halogenation afforded under usual conditions products by substitution only in the benzene ring. Thus, 1.5 ml. SO2Cl2 in 10 ml. CHCl3 was added dropwise to a stirred solution of 0.8 g. I in 10 ml. CHCl3 at <5° to yield 0.92 g. 5,7-dichloro-8-hydroxyquinoline 1-oxide (II) as H2O-insoluble fraction (aqueous solution A), m. 203-4° (HOAc). Deoxygenation of II with PCl3 afforded 5,7-dichloro-8-hydroxyquinoline, m. 176°. The aqueous solution (A) on cooling yielded 0.07 g. 5-chloro-8-hydroxyquinoline 1-oxide, m. 169-70°. Similarly, bromination of 0.8 g. I in 10 ml. HOAc with 1 ml. Br in 10 ml. HOAc yielded 1.42 g. of the dibromo compound, m. 198-200° (HOAc), which on deoxygenation yielded 5,7-dibromo-8-hydroxyquinoline, m. 195°. Nitration of 0.8 g. I in 10 ml. HOAc with 2 ml. fuming HNO3 (d. 1.5) initially at room temperature and then 1 hr. at 70-80° (water-bath) yielded 0.8 g. 5,7-dinitro-8-hydroxyquinoline 1-oxide (III), m. 213-14° (HOAc). Nitration of 0.8 g. I in 10 ml. HOAc with 0.7 ml. concentrated HNO3 (d. 1.42) at <20° for 1 hr. yielded 0.75 g. 5-nitro-8-hydroxyquinoline 1-oxide (IV), m. 191-3° (EtOH). The structure of III and IV were established through deoxygenation and comparison with the known 5-nitro and 5,7-dinitro-8-hydroxyquinolines. The phenolic hydroxyl exerts greater influence than the N-oxide function. The usual 5,7-disubstituted derivatives of 8-hydroxyquinoline, 5,7-dihalo- or the 5,7-dinitro compounds were resistant to N-oxidation either by 30% H2O2-HOAc or BzO2H. If you want to learn more about this compound(8-Hydroxyquinoline 1-oxide)Recommanded Product: 1127-45-3, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(1127-45-3).

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-(Bromomethyl)-4-ethylbenzene, is researched, Molecular C9H11Br, CAS is 57825-30-6, about Design, synthesis and evaluation of 3-(imidazol-1-ylmethyl)indoles as antileishmanial agents. Part II, the main research direction is benzylimidazolylmethylindole preparation antileishmanial agent; indole benzylimidazolylmethyl preparation antileishmanial agent.Electric Literature of C9H11Br.

A new series of 1-benzyl-3-(imidazol-1-ylmethyl)indoles were synthesized according to a previous 3D-QSAR predictive model and assayed for their antiparasitic activity upon Leishmania mexicana promastigotes. The biol. results obtained for these twelve mols. showed an IC50 ranging from 2.3 to 32 μM and mainly illustrated the importance of the hydrophobic parameter in the para-position of the benzyl group. In order to improve the activities of these compounds and to check the potential influence of the electronic parameter on this particular position, a Craig diagram was used to select original electro-donating and lipophilic substituents. Synthesis and biol. evaluation of ten new compounds (IC50 between 2.5 and 5.4 μM) confirmed that only the hydrophobic field is essential for a high level of activity.

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